Driving attachment for thrashers



'C. M. ELLIOTT. DRIVING ATTACHMENT FOR THRASHERS.

APPLICATION FI LED M-AR. 24.1 921.

Patented Sept. 26

- 2 SHEETS-SHEET 1.

GME/Zz'a it C. M. ELLIOTT.

DRIVING ATTACHMENT FOR THRASHERS.

APPLICATION FILED MATT. 24, 1921.

1,430,440. PatntedSept. 26,1922. 1

2 SHEETS-SHEET Z- gwuemtoz .z/ k011i CHARLES M. ELLIOTT, 0.1 MISSLER, KANSAS.

DRIVING ATTACHMENT FOR THRAIJHERS.

Application filed March 24, 1921. Serial No. 455,287.

To all whom it may concern:

Be it known that 1, CHARLES M. ELLIOTT. a citizen of the United States, residing at Missler, in the county of Meade and State of Kansas, have invented certai new and useful Improvements in a Driving Attachment for Thrashers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The object of the invention is to provide means in the form of an attachment applicable to threshing machines having blowers or blower stackers, whereby the cylinder pulley or the pulley by which motion is communicated from the driving belt to the cylinder is relieved of the load incident to t e driving of the blower and whereby an increased purchase of the driving belt upon the cylinder pulley is afforded to minimize the tendency to slipping and lost motion, and whereby the load incident to the driving of the blower is imposed upon a special pulley which while receiving its motion from the driving belt and hence direct from the motor is not only actuable without detracting from the efficien y of the cylinder but serves as a means of increasing the drivino; efficiency of the belt with relation to the cylinder pulley; and with these objects in view the invention consists in a construction and combination of parts of which a preferred embodiment is shown in the drawinc. wherein:

Figure 1 is a side view of a driving at tachment embodying the invention applied in the operation position to a thrasher of which a portion is illustrated showing the relative location of the attachment.

Figure 2 is a rear view of the same.

Figure 3 is a plan view thereof.

Figure i is a detail view of the cylinder and power pulleys and showing the relation of the driving; belt thereto.

In the construction illustrated, a side beam of the threshing machine, which may be of any preferred type is indicated at 10 with the related supporting means such as the bracket 11 and ground wheel 12, while the adjacent walls of the separator forming a part of the threshing mechanism are indicated at 18 and l t with the cylinder shaft 15 projecting laterally over the base plate or platform 16 and carrying the usual cylinder pulley 17 which is traversed by the dr ving belt 18 extending from a suitable motor (not shown). I

The device embodying the invention consists of a power pulley 19 disposed in front of the cylinder lation with the lower side or run of the driving belt with the purpose first of increasing the extent of engagement of the belt with the cylinder pulley and of receiving power from the driving belt so as to communicate motion to the blower pulley 20 carried by the shaft 21' which is common to said power pulley 19 and is mounted in'bearings 22 and 23 carried by a bracket 24 which is mounted upon the base plate or platform 16 to which it may be secured by bolts 25. or equivalent fastening means and which for securing the necessary rigidity may be braced as indicated at 26.

The blower belt Q'Y'traverses the blower pulley 20 extending forward as in the usual practice to the blower pulley of the stacker (not shown) the tension of the belt 27 obviously being opposed to that of the portion of the driving belt whi'h traverses the power pulley 19. so as to equalize in a measure the strain upon the bracket while insurinr; primarily the efficient drivine' of the cylinder pulley and secondly and equall efficient operation of the blower belt. without any possibility of the resistance afforded by the blower mechanism affecting the rotation of the cylinder. and hence without one of the most prevalent disadvantages of the present method of operating the stacker blower.

It will be noted that not only is the driving of the blower accomplished independently of the driving of the cylinder pulley but the efficiency of operation of the latter is increased by the fact that the driving belt is carried approximately around three fourths of the periphery of the cylinder pulley instead of only about one-half of the circumference as in the ordinary practice. The indicated arrangement of the parts moreover serves to maintain an operative relation between the driving belt and the cylinder pulley even without the use of belt tightening means for the reason that the pulley and in deflecting resagging or the belt should there be any. serves to increase the frictional Contact thereof with the power pulley 19 and hence maintai a propel relation oi the belt with the cylinder pulley.

Having th described the intention{whet l claim is:--

l. in a thrasher the combination with the cylinder pulley and driving belt of a power pulley arranged in deflecting relation with the return run of the driving belt adjacent to the cylinder pulley to increase the bearing contact of the belt with the cylinder pulley, and a blower pulley carried by the shaft of said power pulley for actuating the blower driving belt.

2. The combination with thrasher blower oil a power pulley and blower pulley carriec by acornmon shaft and means tor supporting the power pulley in deflecting; relation with the driving belt of the cylinder pulley for increasing the wrap Oil said belt around the cylinder pulley and deriving" mo tion from the belt, said blower pullq being adapted to actuate a blower belt.

3. An attachment tor treshcr blowers having a bracket and means for attaching the same to the frame of the thrasher a power pulley and a blower pulley carried by a common shaft mounted upon said bracket for arrangement with the power pulley in deflecting relation with a run of the driving belt traversing; the cylinder pulley and adjacent to the cylinder pulley for increasing the extent or wrao or the belt around said pulley.

4. The combination with thrasher hav a cylii'ider pulley and driving belt the s e of a blower operating lunent consis n j r a power pulley and led by a common shalt I we pulley being;- arranged adiacent to the cylinder pulle in deflecting relation with the driving belt to increse the extent oi wrap of said belt around the cylinder pulley and blower belt traversing the blower pulley and extending therefrom in the pposite direction from th in which the driving belt extends.

5w ln a thrnshcn the combination with a cylinder pulley and driving belt of a power pulle arr-an to be dr ven by driving: belt. and a blower pulley operated from said power pulley fo actuating: the blower driving; belt.

The combination with a thrasher oi a power pulley and a blower pulley carried by common shaft, said power pulley being arranged to be driven by the driving belt of the cylinder pulley and said blower pulley being; adapted drive the blower belt.

In test nony whereof l my signature presence of two witnesses.

CHAR-LES M. ELLIOTT.

Witnesses Aerrns l Tnrinrn Toni),

lit. l lAZELL lllnr-rorr. 

